Vol of a wedge, integration?

I need to find the general formula to find the volume of a wedge by integrating the cross sections. I drew a picture

Which axes are the x y and z? This is a double integral. Assuming the height axis is z and x and y lie along the floor, get the equation of that plane as f(x,y). then do int( int( f(x,y) dx dy) ). The bounds depend on where the function intersects the x,y plane.

NEW HOW TO EMBROIDER Including HOW TO CROSS STITCH TNNA Revised Ed Volume 4
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CROSSES VOL1 4x4 LD MACHINE EMBROIDERY DESIGNS
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Embroidery  Cross Stitch Magazine 1998 Yearbook V 3  6 V 8  7 595 Each
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